Home / 5,430.56-8,139.36-2,966

Finding the Fourth Proportional to 5,430.56, 8,139.36 and 2,966

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Solution

The fourth proportional to 5,430.56, 8,139.36 and 2,966 is: 4,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.56 : 8,139.36 = 2,966 : x
  2. Step 2: Convert to fraction form
    5,430.56/8,139.36 = 2,966/x
  3. Step 3: Cross multiply
    5,430.56x = 8,139.36 × 2,966
  4. Step 4: Simplify right side
    5,430.56x = 24,141,341.76
  5. Step 5: Solve for x
    x = 24,141,341.76/5,430.56
  6. Step 6: Final answer
    x = 4,445.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.